`pdfReadImageFormat2`

Same inspection as pdfReadImageFormat, but for a specific

BOOL32 __stdcall pdfReadImageFormat2A(PPDF IPDF, const char* FileName, uint32_t Index, uint32_t* Width, uint32_t* Height, int32_t* BitsPerPixel, int32_t* UseZip);
BOOL32 __stdcall pdfReadImageFormat2W(PPDF IPDF, const wchar_t* FileName, uint32_t Index, uint32_t* Width, uint32_t* Height, int32_t* BitsPerPixel, int32_t* UseZip);

Delphi

function pdfReadImageFormat2A(const IPDF: PPDF; const FileName: PAnsiChar; Index: Cardinal; var Width, Height: Cardinal; var BitsPerPixel, UseZip: Integer): LongBool; stdcall;
function pdfReadImageFormat2W(const IPDF: PPDF; const FileName: PWideChar; Index: Cardinal; var Width, Height: Cardinal; var BitsPerPixel, UseZip: Integer): LongBool; stdcall;

Purpose. Same inspection as pdfReadImageFormat, but for a specific frame of a multi-frame image file (animated GIF, multi-page TIFF).

Description. Identical to pdfReadImageFormatH except Index is genuinely passed through to LoadImageFile(FileName, Img, Integer(Index)) to select the frame (0 = first frame) — this Index is honored, in direct contrast to pdfReadImageFormatFromBuffer below, which accepts an Index parameter but never uses it.

Parameters.

Parameter	Description
`IPDF`	Document handle.
`FileName`	Path to the image file.
`Index`	`0`-based frame index — genuinely honored.
`Width`, `Height`, `BitsPerPixel`, `UseZip`	Same semantics as `pdfReadImageFormat`.

Return value. True on successful decode of the requested frame; False if the file, or that frame index, doesn't resolve.

C# (P/Invoke)

wrappers/dotnet/LumasPdf.cs

[return: MarshalAs(UnmanagedType.Bool)]

Area

Forms